Broken user update in 6.2.1

[fufroma]

The MR #3690 with the patch 48208f7 deleted the function update function from User.php

But the update function is still in use, for example

ampache/src/Module/Application/Preferences/UpdateUserAction.php

Line 95 in ab2161f

if (!Core::get_global('user')->update($_POST)) {

Right now, users can't update their profil anymore, there is no error in front, only an error in ampache.log
(src/Module/Application/Preferences/UpdateUserAction.php:NOTRELEVANT) -> Call to undefined method Ampache\Repository\Model\User::update()

[lachlan-00]

restored it until it can be removed again. i'll put a @ see in as well db500db